Answer:

Sleepiness or fatigue.

Wet or dirty diaper.

Hunger.

Overstimulation from noise or activity.

Answer:

Common reasons you should be on a lookout for whenever an infant cries:

-Baby Is Hungry. Babies tend to get hungry fast because their stomachs are small

-Baby's Diaper Needs Changing.

-Baby Doesn't Feel Well

-Baby Is Too Hot Or Cold

-Baby Is Tired and Needs a Rest

-Baby Wants To Be Held

-Baby has Colic, acid reflux, or food allergies.

-Baby feels Pain or illness.

-Gas.

-Stranger anxiety or fear.